Don't delete package manager

Author: chidozieononiwu

eng/common/pipelines/ci.yml

@@ -32,18 +32,9 @@ extends:
 
               - template: /eng/common/pipelines/templates/steps/create-authenticated-npmrc.yml
 
-              - script: npm install -g pnpm # Pnpm manage-package-manager-versions will respect packageManager field
+              - script: npm install -g pnpm@10.30.2 # Pnpm manage-package-manager-versions will respect packageManager field
                 displayName: Install pnpm
 
-              - script: |
-                  node -e "
-                    const fs = require('fs');
-                    const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'));
-                    delete pkg.packageManager;
-                    fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));
-                  "
-                displayName: Remove packageManager for pipeline
-
               - script: pnpm install
                 displayName: Install JavaScript Dependencies
 

eng/tsp-core/pipelines/templates/install.yml

@@ -25,16 +25,10 @@ steps:
           version: 8.0.x
 
   - template: /eng/common/pipelines/templates/steps/create-authenticated-npmrc.yml
-  - script: |
-      node -e "
-        const fs = require('fs');
-        const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'));
-        delete pkg.packageManager;
-        fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2));
-      "
-    displayName: Remove packageManager for pipeline
-  - script: npm install -g pnpm # Pnpm manage-package-manager-versions will respect packageManager field
+
+  - script: npm install -g pnpm@10.30.2 # Pnpm manage-package-manager-versions will respect packageManager field
     displayName: Install pnpm
+
   - script: pnpm config set store-dir ${{ parameters.pnpmStorePath }}
     displayName: Setup pnpm cache dir